NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 584 - 590 of 3511

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Question number: 584

» Plant Physiology » Plant Growth and Development » Photoperiodism

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MCQ▾

Question

When the dark period of short day plants is interrupted by brief exposure of light, then the plant

Choices

Choice (4) Response

a.

Flower immediately.

b.

Will not flower at all.

c.

Turn into a long day plant.

d.

Give more flowers.

Question number: 585

» Reproduction » Sexual Reproduction in Flowering Plants » Development of Endosperm and Embryo

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MCQ▾

Question

Syngamy means

Choices

Choice (4) Response

a.

Fusion of cytoplasm.

b.

Fusion of gametes.

c.

Fusion of similar spores.

d.

Fusion of dissimilar spores.

Question number: 586

» Diversity in Living World » Five Kingdom Classification » Plant Group - Pteridophytes

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MCQ▾

Question

Meristems are found in

Choices

Choice (4) Response

a.

fern rhizome

b.

fern leaf

c.

cycas stem

d.

pinus needle

Question number: 587

» Diversity in Living World » Five Kingdom Classification » Monera

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MCQ▾

Question

Nitrogen fixation by Nostoc takes place in

Choices

Choice (4) Response

a.

akinetes

b.

hormogonia

c.

vegetative cells

d.

heterocysts

Question number: 588

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

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MCQ▾

Question

The genotypes of a plant variety were TtHh, Tthh, ttHh, and tthh, where T = tallness and H = hairy stem. Which one of the following crosses would produce progeny giving a phenotypic ratio approximately 1: 1: 1: 1?

Choices

Choice (4) Response

a.

TtHh x tthh

b.

TtHh x TTHh

c.

TtHh x ttHh

d.

TtHh x TtHh

Question number: 589

» Reproduction » Reproduction in Organisms » Vegetative Propagation in Plants

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MCQ▾

Question

A clone is a group of individual obtained through

Choices

Choice (4) Response

a.

Cross pollination

b.

Vegetative propagation

c.

Self pollination

d.

Hybridization

Question number: 590

» Structural Organization in Animals and Plants » Plant Tissues - Morphology, Anatomy and Functions » Root

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MCQ▾

Question

A cap like region of slowly dividing or inactive cells in the middle of highly meristematic cells (between meristem and root cap) is

Choices

Choice (4) Response

a.

vegetative zone

b.

corpus centre

c.

quiescent centre

d.

somatic zone